Blank of water is a physical change because boiling the water is blank from a liquid to a gas
2 answers:
The first blank is evaporation and the second blank is changing.
The answer to the first blank is boiling. The answer to the second blank is changing.
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Explanation:
Moles of NaOH = 10g / (40g/mol) = 0.25mol.
0.25mol / 500g = 0.50mol / 1000g = 0.50mol/dm³.
The molarity is 0.50mol/dm³.
The electromagnetic force is attractive for unlike charges and repulsive for like charges
The heat absorbed by the water is
Q = 500 (4.18) (32.2 - 25)
Q = 15048 J
The enthalpy of fusion of the sodium acetate is:
<span>ΔHf = Q / m
</span><span>ΔHf = 15048 / 100
</span>ΔHf = 150.48 J/g
Answer:
There are 12 atoms in the compound
Answer:
2Cl+2e -->2Cl^-
Explanation:
reduction is the gain of electrons and this is the only option which fits the definition.
